Hi Kell,
Journal your mood. PM ups dopamine. That feels like an immediate reward (20 minutes after ingestion). But dutasteride suppresses DHT very effectively. Since DHT, in men, builds the ability to cope with stress, you may feel totally defenseless. That will happen 5-6 hours after taking it: the time to metabolize the DHT you already had.
So don't take more dutasteride than you need. No longer than six months, because PM can handle your androgens by itself after six months. And at the moment: if you don't break out and have no oily skin, you're taking enough.
Lower the dutasteride dose or stop immediately if you feel vulnerable or weepy, or if your tendency to hole up becomes worse. You'll become suicidal if you let it go too far.
After 2-3 weeks, cutting off DHT will increase Luteinizing Hormone (LH). LH in turn will increase testosterone and estrogens. The testosterone increase is OK: without DHT, it only affects skeletal muscle growth. All other androgen effects receive the androgen signal via DHT as an intermediate. The estrogens increase is what will grow your breasts. But they will give you low libido, and a tendency to become depressed. Put a tick box for depression in your journal too.
Because you have much less progesterone than a GG, 3,000 mg PM may make you estrogen dominant. The most common symptoms are headaches or lower back pain. Lower the PM dose or have some fenugreek, wild yam, or fennel seed tea handy.
Neither PM nor dutasteride will affect your anxiety directly, unless, like bryony writes, your anxiety is caused by GID. In that case, PM should relieve it. If you take too much PM, you will start worrying about what you are doing to your body and where all this will end.